Prototype Model Unit XJ-3



Physical Information

Age Unknown (Older than XJ-9)
Gender Female
Species Robot
Eye color Black
Hair color None
Weight {{{weight}}}
Height {{{height}}}

Basic information

Residence Tremorton
Occupation Superhero/crime fighter (When awake)
Nicknames {{{nicknames}}}
Likes Helping people, saving the world
Dislikes The Cluster, Smytus, falling apart uncontrollably

Relationship information

Love interests {{{relationships}}}
Family Nora Wakeman (creator/mother)
XJ-1, XJ-2 (early prototypes/sisters), XJ-4, XJ-5, XJ-6, XJ-7, XJ-8, XJ-9 (later sisters)
Wisteria Wakeman (aunt)
Glenn Wakeman (cousin)
Friends Brad Carbunkle, Tuck Carbunkle
Enemies Smytus

Production information

First appearance "Sibling Tsunami"
Last appearance "Turncoats"
Voiced by: None

Prototype Model Unit XJ-3 is a small, cute XJ prototype robot. XJ-3 is not very stable, and, thus, falls apart when she hits things and is awkward on her feet, often falling down. In terms of robotic development, she represents a toddler who is just beginning to learn how to walk. Her biggest weakness is that her body does not resist much strength, which causes it to be easily disassembled.


She appears as a smaller, toddler-like version of Jenny with only one eye, two pincers as hands, and rounder in shape.


XJ-3 can create hammers on her hands (Shown in Sister Sledgehammer) and can form a spinning scorpion tail (Shown in Turncoats).



  • Because she can't talk, XJ-3 is the only XJ robot to not have a voice actor.
  • She is the one to get fixed a lot by Dr. Wakeman, or gets 'cleaned up' by XJ-4.